SOLUTION: Please help me solve this equation: {{{ 40= 20e+10e^x }}} The directions say: Solve each logarithmic or exponential equation. Thank you for your help!

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Please help me solve this equation: {{{ 40= 20e+10e^x }}} The directions say: Solve each logarithmic or exponential equation. Thank you for your help!      Log On


   

Question 323786: Please help me solve this equation: +40=+20e%2B10e%5Ex+ The directions say: Solve each logarithmic or exponential equation. Thank you for your help!
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
+40=+20e%2B10e%5Ex+
4+=+2e+%2B+e%5Ex
e%5Ex+=+4+-+2e
x = ln(4-2e)
4-2e =~ -1.43656
There is no log of a negative number.